Expired, full termArchiveSolo inventor
Manifold forms
US 3,558,159 A · Inventors: WAFFNER WILLIAM D et al.
Overview
2 drawing sheets
Every sheet is in the USPTO PDF.
Open the USPTO PDFRead the whole patent
Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 26, 1971. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 26, 1988.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 28, 1968
GrantedJanuary 26, 1971
Term endedJanuary 26, 1988
Application number—
Classification (CPC)B41L1/32 +1 more
Length5 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.